What is the fastest PLL that can be implemented on the BlackIce II ? The wiki talks about a clock running as high as 1033Mhz

If the VCO were running at 533MHz with the divider set to divide by 64, we'd get an output frequency of 8.2MHz. Similarly, running at 1033MHz and dividing by 2, we'd get 516MHz. That's a very large range indeed!

I'm trying to create a PLL at 400Mhz but the icepll says the maximum I can create is 275Mhz.